<!DOCTYPE HTML>
<html>
<body>
<div style="width:250px; height:200px; border:10px solid red; padding:5px">
  <div id="input" contenteditable="true" style="height:200px; outline:none"></div>
</div>
<script>
window.focus();
document.getElementById("input").focus();
</script>
</body>
</html>
